铝合金手板制造中以SLA光敏树脂选择性固化应用广泛。材料成本目前约10-20元/g，包括支撑件等附加部分。SLA机的加工能力按体积计算，单坐标尺寸小，许多大尺寸零件无法加工，大型SLA机铝合金手板生产企业很难承受。另一方面光敏树脂与常用材料差异很大，限制了模型的着色、上金加工。当然成本问题随着生产规模扩大，少能部分解决。

SLA photosensitive resin is widely used for selective curing in the manufacturing of aluminum alloy handboards. The material cost is currently around 10-20 yuan/g, including additional components such as supports. The processing capacity of SLA machines is calculated by volume, and the single coordinate size is small. Many large-sized parts cannot be processed, making it difficult for large-scale SLA machine aluminum alloy hand plate production enterprises to bear. On the other hand, there is a significant difference between photosensitive resins and commonly used materials, which limits the coloring and gold processing of the model. Of course, as the production scale expands, the cost issue can at least be partially resolved.

其它3D打印手板如FDM熔融沉积成型，SLS选择性激光烧结技术因生成的材料有空隙，多在要求不高的铝合金手板制造中应用。

Other 3D printing templates, such as FDM melt deposition molding and SLS selective laser sintering technology, are mostly applied in the manufacturing of aluminum alloy templates with low requirements due to the gaps in the generated materials.

层合实体制造方法的分层精度较低，许多科研人员在通过各种优化的方法提高分层拟合的精度，但尚有一定距离。快速成型设备目前尚未成为铝合金手板企业的标配，只是在大型铝合金手板制造企业配置，多以SLA光敏树脂选择性固化为主。

The layering accuracy of the layered entity manufacturing method is relatively low, and many researchers are improving the accuracy of layering fitting through various optimization methods, but there is still a certain distance. Rapid prototyping equipment has not yet become a standard configuration for aluminum alloy sheet metal enterprises, but is mainly used in large aluminum alloy sheet metal manufacturing enterprises for selective curing of SLA photosensitive resin.

铝合金手板打磨液的维护

Maintenance of Aluminum Alloy Hand Plate Polishing Fluid

铝合金手板加工打磨液的配制和使用与普通打磨液基本相同，只是在稀释水的选择上要更加严格。因为水中的许多离子对铝都会产生腐蚀作用，如果这些离子含量过多就会降低打磨液的防锈性能，尤其是在工序间防锈上，例如氯离子、硫酸根离子以及重金属离子等。

The preparation and use of aluminum alloy hand board processing polishing fluid are basically the same as ordinary polishing fluid, but the selection of dilution water is more strict. Because many ions in the water can corrode aluminum, an excessive amount of these ions can reduce the rust prevention performance of the polishing fluid, especially in the rust prevention between processes, such as chloride ions, sulfate ions, and heavy metal ions.

铝合金手板加工打磨液的维护除了需要如普通打磨液的日常维护外，还需要注意以下几点：

In addition to the daily maintenance of ordinary polishing fluid, the maintenance of aluminum alloy hand plate processing polishing fluid also needs to pay attention to the following points:

过滤：因为铝合金在碱性条件下易发生反应生成铝皂，破坏打磨液的稳定性，因此应立即将打磨下来的铝屑过滤出去，避免铝屑与打磨液再发生反应而影响到打磨液的使用效果与使用寿命。在打磨加工过程中磨出来的铝屑既细小又轻，很难沉淀下去，如不进行过滤或过滤的不充分，铝屑就会随打磨液循环系统被带到加工区而划伤工件表面，影响加工表面的光泽度。

Filtering: Because aluminum alloys are prone to react and generate aluminum soap under alkaline conditions, which can damage the stability of the polishing fluid, the polished aluminum shavings should be immediately filtered out to avoid further reaction between the aluminum shavings and the polishing fluid, which may affect the effectiveness and service life of the polishing fluid. The aluminum shavings produced during the polishing process are both small and light, making it difficult to precipitate. If not filtered or not filtered sufficiently, the aluminum shavings will be carried to the processing area by the polishing fluid circulation system and scratch the surface of the workpiece, affecting the glossiness of the processing surface.

值：因为铝材对打磨液的ph值十分敏感，因此要经常性地对铝合金打磨液ph值进行检测，如发现异常应及时进行调整。使用ph控制在8～9，以免ph值过高腐蚀工件或ph值过低使细菌大量繁殖而影响打磨液的稳定性和使用性能。

Value: Because aluminum is highly sensitive to the pH value of polishing fluid, it is necessary to regularly test the pH value of aluminum alloy polishing fluid. If any abnormalities are found, they should be adjusted in a timely manner. Use pH control between 8-9 to avoid excessive corrosion of the workpiece or excessive bacterial growth caused by low pH, which may affect the stability and performance of the polishing solution.

定时补加新液：既保证打磨液的良好润滑，也保证了打磨液良好的防锈性能和防腐性能，以延长打磨液的使用寿命。铝合金手板加工打磨液的选择是十分重要的，既要保证打磨液良好的润滑性、防锈性，还要有良好的稳定性、过滤性和易维护性，只有这样才能加工出符合要求的产品，限度地降低打磨液的使用成本。

Regular addition of new fluid: This not only ensures good lubrication of the polishing fluid, but also ensures its good rust prevention and sterilization and anti-corrosion properties, in order to extend the service life of the polishing fluid. The selection of polishing fluid for aluminum alloy hand board processing is very important. It is necessary to ensure that the polishing fluid has good lubrication and rust resistance, as well as good stability, filtration and easy maintenance. Only in this way can we process products that meet the requirements and minimize the cost of using the polishing fluid.

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